Means for balancing centrifugal pumps.



PATENTEDJAN. 1, 19.07. a sums-sum a.

J.DBGEN. MEANS ron BALANGINGYGBNTRIFUGALPUMPS.

#PPLIIOATION FILED JULY 8, 1906 PAT-EDITED JAN. 1, 19-07. J.DEGEVN, MEANS FOR BALANCING OENTRIPUGAL PU MPS.

APPLICATION FILED JULY6, 1905.

J72 027250;" Julia; Jaye/0. Zis ado/7a 11-0.. 840,116. PATENTED JAN. 1, 1*'07i J. DEGEN.

V-MBANS FOR BALANOI'NGOENTRIPUGAL PUMPS.

APPLICATION FILED JULY 6, 1905. I

I O O PATENTED JAN. 1, 1907. .LDEGEN.

'MEANS FOR BALANCING GENTRIFUGAL PUMPS.

' APPLIOATIQN FILED JULYG, i905.

8 SHEETS-SHEET 5.

PATENTED JAN. 1, 1907.

. .JQDBG'EN.

MEANS FOR BALANCING 'OENTBIFUGAL PU MPS.

APPLICATION FILED JULYG, 1905.

eye).

f M W PATENTED JAN. 1, 1907.

J. DEGEN. MEANS FOR BALANCING OENTRIFUGAL PU APPLICATION FILED JULY 6, 1905.

8 SHEETS- NN NR.

Witnesses:

- No. 840,116; PATENTED JAN. 1, 1907.

- J. DEGEN.

MEANSFOR BALANCING OENIRIPUGAL PUMPS.

APPLICATION FILED JULYG. 1905.

a SHEETS-SHEET a.

"JULIUS DEGEN, TRENroiiQNEVii JE SEY, ASSIGNCR;; ASS1GNMENTSTO LEA-DEGEN PUMPCOMPA'NY, or a NEW'RJERSEY; A somet mes "on, NEW JERSEY.--

- Be it known that I,' JULIUS DEGEN} afeitiin- Trenton, in the county ofMercer and State of New Jersey, have "i-nvented. certain new and useful Improvements in Means for Bale ancing Centrifugal Pumps, of which the following-is a speelficatio'ng reference being had ltogthe accompanying drawings, in whic-h IO Figure 1 is a Vertical longitudinal sectional --view of acentrifugal-pump,illustrating one .embochment of my invention. IIFigtJ'Z Tis a similar view illustrating another embodini'ent of myinventio'n; .Fig. 3 is a top 'plan View of Fig. 1. Fig. 4 isan end view ofthe pump, a portionof the-casmgbeing removed. Fig 5 is a sectional view of a bearing of the pump. Fig. 6 is a View of the suctionend of the-pump Fig. 7 is a sectional View of the sleeve for securing the. impellers t the. shaftand of themeans for packing. the shaft Where" "it passes-through .a n

8 is an end View f the sleeve for seourin artitionin the casing.

the. impellers totheshaft. Fig; .9 is asec Y shaft passes out of the casing. Fig 10 is/a 14 are similar views tional View showing the packing Where the perspective View of the sleev'e for securing the'impellers' to the shaft. I Figs. .11 andzl2 are enlarged views, in side elevation and 1011- gitudinal section, respectii ely, shoi'ving the adjustable rings in Fig.1; and Figs. 13 and showing the adjustable rings in Fig. 2. I

The object of my ini'entionha s been to provldea means for balancing and rem ovmg the end thrust of a shaft of a centrifugal pump; and to such ends my iriventioncon v sists inthe means forba-lancing centrifugal pumps hereinafterspecified.

;In any patent for. centrifugal pump, N0 814,902, granted :Marc-h 13, 1906, is illustrated construction in which annular ehambersqsimilar to the chambers 15' and .16in the present case are fo'rmedIatIea-eh side of the impeller "near the peripheries thereof between the impeller and the casing,

and the walls of the passages into which the water leavin the impeller issuesconverge, so that the friction of such water: and thecentrifugal force impartedto the water clinging to the outer. surfaces of the impeller cause the Water totravel from the chambers 15 and p Specifieationof Letters'ratent 3' A slicatiofifild mye, 1905, senalltb. 268.899. r

, l dinto the difiusing-passage' 17 ftion causes-a decrease of l pr'essiire the zen of the Republic of'SWitzerland, residing tion is "designed to afford means fofu'egula .widtli of said passages-is regulate iby fore referred to, connecting the chambers-15 and 16 with the' diffusing-passage -1,17 are, formed nil-rings 22 and 23, the said rings the neck of the said rod moun sleeve 28,;which is screwedfinto thefioasihgae 22 may be forced toward the: p tracted into its seat. .vEachJr ing.

the pump each rod passing through one/3o flow of the-water.

the impeller within the ring is counter- 1 balanced bvthe static pressure 11111 1 19 cha n pellerto tie other throu h the slbtsa a f-suc tion, and the amount -hf suctilonfdepends u on the size of. the passages connect ing s'uc chambers with thelgdiffusihg 'pa sage, the said suction beingisgiater -i 'as"v suc passages are smaller. The": present: int Ye ing such passages In theirsaid atent t ing the shaft and With-it thewiinpeller e the resent 1 invention'it is" mycep ose 016 5 avoid shifting the shaft-Land? toi'enab e: these) i 1; 1 passages to be regulatedfor leach" impeller if. de endentlyfof theother. -yir n the present lIIVGDtiOili'hhGASILYfBJCGS 8 and;1'9,*\ vhich converge, as b'eforetdeseri be and which form the passage'si-Qflgand 215,3"

being seated in annular grooves-formed 111 the casing and a partition- 24, res ecti-irelyz-z In order to adjust the rings22 an ;-23.jw ith -out moving the shaft or thezrimplelle'r eachm ring has SWiYQlCl'ill it a I'OClgj25, thatisase 'fi; cured in the said ring bya sere'Wj.Z6;'engagin 53 'inthefisai ring. The rod has a threaded portion 2? an that engages a threaded hole due. stuf-Hngi and compresses the packin 29 Bywturn ing a handle '30 'on the endotthe od therin I preferably 1 has one of the rods 30 foreaelrrlefieeton31=int the deflectors, soas not to in er Each impeller, asinthes I patent,pref -,1 erably carries rings 32 and 33 rnakinga-rune 11" ning contact with the casing closing the 1 inner 'or'lower endsof the chambersylfiwand'; 16. The static pressure onthefrontside-of 34, formed at the rear side of thewater passing irom one; s

formed in the sleeves, whic secures the inipellers tothe shaft, as in the said'paten't.

given positions.

In that embodiment'of my invention'illustratedin Figs. 2, 13, and 14' the construction is the same as that before described, except' thatinstead of having the rings 22 and 19 moiintedinannular grooves in the casing a ring-36 is provided having-an integral springfla'ng'e 37 formed thereon and secured to the of sa d ring.

' In the operation of; the aboveedescribed -einbodiment of my invention the end-thrust is balanced as follows If there is a tendency 'o'f 'the shaft to move to the right, as seen 1', thepressure in the'chamber is to be reduced. lhis is accom lished by moving' the} ring 22 nearer to t e'impeller, dc creasing the passage-way between the .two

guently a'lesser' pressure in the chamber 15. n-th'e other hand,'if there is a tendency of f. the shaft to move to the left, as seen in 'Fig 1,

- of thumbescrews toward ,the impeller to make a 'more contracted passage-way between thetjwo,- and the water is exhausted. from theh 'mber 1.6 i u'ntil the. alancedI-f; 1-.jj thus 1., In a centrifugal pump, the following .cornbinationof elements; a casing, an impressures have been described this invention, i

zvhereby to enlar e and diminish','at-will, the ---spaces between't e means and theimpeller whereby to vary the suction upon the fluid on either-side of the impeller.

".2. a centrifugal pump, the following combination of elements; a casing, an impeller running therein, ashaft, means mov-j sable toUand from the walls of the casing wh'er'eby to enlar e and decrease at will the spaces between t e means and theimpeller whereby to vary the suction upon the fluid on either side ofthe impeller, and means to govern the shiftment ofthe means.

' 3. .In a centrifugal pump, the following "combination. of elements: a' casing, an im- 1 peller running therein, alshaft, means mov-;

. able' to and from the" walls of the casing whereby to enlar e and diminish atwill, the spaces between t e means and the impeller you either sidejof the impeller, means to gov- (am the shiftmentof the means, and securing 'devices' to maintain the shiftment means in .tween said the impeller;

the pressure'in the ehamber 1'6is to be de creased, and its ring 23 is advancedby means peller running therein, a shaft, means m0v-' able'to' and from the alls of the casing Witnesses:

- a-centrifugal pun11]p,the combination with a casing, of an impe operating there- 1n, the walls of said casing being provided with recesses, means-located in said recesses,

and means for shifting the first-named means tating within vthe casing, closed chambers. formed in said casing at each side of the impeller, annular grooves formed in the-casing at each side of the mouth of the impeller andoutside of said chambers, rings mounted in said grooves, the adjacent faces of said rings converging toward each other, and means to shift said rmgs'toward and from the impeller to vary the width of the communications bechambers and the discharge of 6; vIn a centrifugal pump, the combination I of a casing, a shaft, arr impeller thereon, rotatmg within the casing, closed chambers formed in said casing at each sideof the im- -peller,-annular grooves formed in the casing at each-side of the mouth of the impeller and outside (if said chambers, rings mounted in said grooves, the adjacent faces of said rings converging toward each other, and means to shiftsaid rings toward and from the impeller to vary the width of the'communications between said chambers and the :discharge of the impeller, said means consisting of scre'w- -rodsswiveled to said rings and extending through the casing. I y

7. n a centrifu al pump, the combination of a casing, a sha t having bearings therein,

:animpellermounted on the shaft, closed chambers formed in said casing at each side of the impeller, said casing having annular grooves at'each side of the mouth of the impeller, and outside of said chambers, rings mounted in said grooves, the adjacent faces of said, ringsconverging toward each other in the direction of the flow of the Water from theimpeller, rods mounted in the casing and having grooved heads that are seat-ed in sockets in said rings, screws mounted in said rings and engaging said grooved heads, said rods having a screw-thread engaginga sta tionary part, and having means whereby they may be turned, whereby the width of the communications between said chambers and -the discharge of the impeller may lie-varied. whereby to'vary the suction upon the fluid JULIUS TDEGEN, I

- FRED. 'W; BARNACLO, JOHN Sniruanr.- 

